Conventional vertical lathe main transmission systems have the problems of complex structure,high failure rate,and unsatisfactory machining accuracy.This work hence focused on the feasibility of realizing gearless transmission of vertical lathe turntable through direct embedment of permanent magnet motor.It performed the electromagnetic design and simulation,analyzed the steady state temperature rise of the motor under long-term load conditions,and studied the possible influences of load torque pulsation and reverse potential waveform of the motor on turntable operation.The theo-retical analysis and design were experimentally verified by an actual vertical lathe(C5116 B-3 A).
关键词
无齿轮传动/永磁电机/电磁设计/稳态温升
Key words
gearless drive/permanent magnet motor/electromagnetic design/steady state temperature rise